Pneumatic wheel.



F. PERSONE.

PNEUMATIC WHEEL( VA/PPucfmou FILED 1uLY 13.1915

.31,210,357. Patented 1366.2 16., 2 SHEETS-sn 2 SHEETS-'SHEET 2.

`""Whnle which l tions, towor in;

" El ilflifilhlii M FRANCESC PERSGQ', OF

MARIE?, ITALY.

PNEUMATIC lVHEEL.l

s ,duplication filed .lilly TW To all 'whom t may confer/n.:

Be it known that I, FRANCESCO Pensosfi, e subject of the King of Italy, and residing nt N arde, Province of Lecce7 lts-ly, have invented certain new and useful Improvements in, Pneumntic Wheels7 of which the followingis n specification.

Theminention relates toresilient `Wheels for motfnscrs and other vehicles aindo' that class in which resiliency is obtained through the agency of compressed sir storedin e hollow center or hub portion und adapted to :ict on the wheel rim made'in sections, by nid of plungers connected to these ,rim sections, and the object of the same is to improve a wheel of this construction. These improvements are intended to furnish a simple and firm and stable wheel construction, to insure e constant and maximum resiliency for any part ofthe rim or 'for every rim-section, to limit the extent of the oscilltions of the rim-sections and to pro- 4yigle-f-o`r these rim-sections being supported.

from the rigid part of the Wheel, also for reducing as for as possible the weer. With these objects in view, the center or hub portion containing the compressed air, is cast in one piece with the Wheel spokes and with e ring connecting these seid spokes, end it las enst on it, lugs for fastening it to the wheel axle, these parte forming thus" one is the rigid part of the wheel; are hollow and serve es cylinders the spokes connected to the rim-secm for' the plun ers,

and are made in one piece with the plunger rods which have the same cross-section as the plungers and as the cylinder spokes, and

`they carry the rim-sections and also easily detachable leather caps; each rim-section has providedfor it an elastic india-rubber support interposed between the respective rimsection sind the connectin sectionsjire covered with india-rubber segments which are not fastened thereto,v but er? linterconnected by mezmofl streps'and bo ts.

The construction of the center or 'hubpon tion allows a `articularly simple structure of the wheel, tlie formation of and the provision of the air pump insure a very firm' und stable structure andthe required resiliency of the wheel, the indiarubber supports limit theextent of the oscillotions of the rim-sections, end the arrange ment of the indiwruhber tiresections per Specification of Letters Patent.

the plungers are hollow.

ring; the rim-' the plungersmits their bein@l easily interchenged and to diminish the weer on the other parte of the wheel. n

in order that the invention may be readily understood, the same will here be described, by. way of exampley with refer ence to the annexed drawings, in whichM Figure l is :tside elevation of the wheel,

some of the ports being shown in section, Fig. 2 is a part sectional side elevation, Fig. 3 is e cross section of the supports for the rim-sections, taken on line A-B of Fig. 2. `The wheel comprises u center or hub portion l, for exemple of cast steel. This center or hub portion is hollow end `muy have nir compressed into it by means of an ordinary inlotingvulve 2, n pressure gage 3 being provided for controlling the air pressure within the center or hub portion.

The center or hub portion is tted with radially projecting spokes i cest in one piece with it,` these spokes being hollow cylinders which are turned and ground inside -nnd which communicate with the center or hub portion. The spokes are interconnected ut their outer ends by n ring 5, so that the center or hub portion sind the spokes form onen'bole which is the rigid part of the wheel. The center orhul portion l has eiso cest in one piece with it lugs le which by eid of bolts or the like (not sboi'n in the drawing) passing through holes v15 in the lugs, serve to fasten the center or hub portion l and therefore the Whole Wheel, for example, to a plete carried Vehicle.

In each cylinder spoke 4-moves e snugly fitting plunger 6 having a plunger rod 7 of tiel-same cross-section es the plunger and pivotally secured by means of a. bolt 9 to the lug 8 ois segment-shaped section l0 covered with a- Solid rubbertire portion 1l.. ment-shaped sectionsv 10 'form the ery or rim, and the solid rubber portions 11 the tire of the wheel. l tions' are not permanently attached to.' the rim-sections, but are arranged in grooves thereon andere interconnected bynxeens of elongated plates or straps 12 and bolts 13. In order to secure the airtight. iittin the plun ers 6, it is advisable to use p ungers of 51e spring. piston type, these plungers being hollow inside andfprovided et their inner end with a cap 18 of leather or other suitable materiel. lThe csp i6 is festened to the plunger by eid ci e screwby the axle of the The seg periph- These rubber-tire por-` mio "15? Asie the lunger body.

' the inner end of the ponger 6 and the head 19 of the sleeve. A fiat-heeded screw 2G is provied for kicking the sleeve in the desited position and for pgeventing its becoming loose.

When the wiieei is running, he miious rim-sections 10 oscilnte about their axes 9. To limit. the extent of these oseiiaionf' en. tic bearings oz' supports i'e rovicied @which connect each rim-section witii zhe ring of the center portion. The elastic bee'ing o1' support @Ompi-isses a hoiow oyiini'icel membei* or buffer 254 of india-rubber, which is fastened to the ring 5 by ineens of e, boit Smil nui*l 26 and carries n csp 27 of ioii or like material.

The buffer 25 consiss of two pars anti the part near the fing 5 is of larg-ex: cimesse'ot'on than the iemeindei: of the 4imier. The head of the boit 26 is piefembiy mede to enter a cavity on the buier es to lesive the remainder thereof free.

The cup 2.7 consis s; of e, hoiioif: iioi cyiiw dei', into whose cavity Ehe smiiier p52*; o the bufer 25 orce, and lne oep if; oeoure to the buffer by means of u oo with md, washer and pin, w lich posses 'imugh no; in the cap f mdjvixe buen The lippen oi the oep 2f? is pmvide wih two Wings 29 oimiiig e, cavity or gli", The im?" .r is er'engeai opposite iii sional bezieee me mii( 'i Seeione emi ,i f

may enter' the moves :m6: bez on the cog` 27. t

here is thus provicie on the. ring an eiaeiic bearing or support fio;- esieii rim-sco tien, which prevents eficessiveiy wie osci'b .ietions of the rim-sections about their axes 9 ami also that the siiess on the plungers should be 'too heavy, but this beaming or support does in no way inereie with the iesiienoy of the Wheel. By this device, there are two bearings for euch rim-section1 one io 'sho right end one to the iet of the oum'ei. A

.in e wheei, the Combineion of the hub, hoiiow spoke sections extenfiiog from the hub, a channel rim supported on the hollow spoke sections, an outer rim formed in seotioiis md ting in the ehannei of the inner rim, links pivoteiiy connecting adjacent outer rim sections, :1 spoke 'portion pii'oted to erich secion the out/ei* iim and .iingg in the hoiiow spoke portions of tile inner rim, leans forming a cushion between the poke portions, each emilion of the miti rim iaving epenioff lug et opposite omis, eushionf secured in the @karwei of the inner rim, them being a. cushion loceeii below the meet-ing amis of each pair of sections o the oue? rim, each cushion comprising a rr-olio?? rea-iieii body and oep i'asencd tiieireizo, the ings om the seotiom engaging smid cap.

tes-iioony ".:fiiei Kim/e signeci my wine .in the presence o 'wo xuirsiciisiiig xvii :die 2 da" "im J ...o di

Gimme Cio, 

